W Model 1RKU2 w/optional Wall mount. Unit Model Weight (Lbs) Kilowatts Volts- Phase Amps Fan Output Heat Output

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1 Operating Instructions & Parts Manual 1RKT2, 1RKT3, 1RKT4, 1RKT5, 1RKT9 and 1RKU2 Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions for future reference. Dayton Portable Electric Heaters Description This is an electric, forced air heater. It is primarily intended for temporary heating of buildings under construction, alteration or repair. This heater circulates the room air to gradually and continuously heat the space. The heater is constructed with a high quality heating element, and is supplied with front and rear safety screens. It comes with a high limit temperature switch, with automatic reset, a temperature control thermostat, and a fan control switch. Note that each heater can be used as a portable model, or wall or ceiling mounted with the optional wall/ceiling mount kit. It is not intended for use in residential applications. Dimensions (Port / Suspend) Model Length Width Height Model No. Length (Port/Suspnd) Width (Port/Suspnd) Height ( 1RKT2 21 /36 27 /23 39 /23 1RKT3 21 /36 27 /23 39 /23 1RKT4 21 /36 27 /23 39 /23 1RKT5 21 /36 27 /23 39 /23 1RKT9 21 /36 27 /23 39 /23 1RKU2 23 /38 27 /23 39 /23 Figure 1-1RKT2. L Figure 2 Specifications H Model 1RKT2 w/ cart W W Model 1RKU2 w/optional Wall mount Table of Contents Page Dimensions Specifications General Safety Information Features Assembly Wiring Operating Instructions Maintenance and Storage Exploded Part Illustration Replacement Parts List Troubleshooting Unit Model Weight (Lbs) Kilowatts Volts- Phase Amps Fan Output Heat Output 1RKT CFM 51,216 BTU/Hr 1RKT CFM 51,216 BTU/Hr 1RKT CFM 51,216 BTU/Hr 1RKT CFM 34,144 BTU/Hr 1RKT CFM 51,216 BTU/Hr 1RKU ,200 CFM 102,432 BTU/Hr H L Form 5S5643 Printed in Korea /295/VCPVP PIN016 09/06

2 1RKT2, 1RKT3, 1RKT4, 1RKT5, 1RKT9 and 1RKU2 Dayton Portable Electric Heaters Unpacking Remove the heater and all of its packaging materials form the shipping carton. NOTE Save the box and packaging materials for future use. General Safety Information Do not operate this heater until you have read, and thoroughly understand these safety and operating instructions. Failure to comply with the precautions and instructions provided with this heater can result in death, serious bodily injury, property loss or damage from the hazards of fire, explosion, burns, or electric shock. Only persons who can read and understand these instructions should use or service this heater. Not for residential, household or recreational vehicle use. Please read this manual FIRE, BURN, INHALATION AND EXPLOSION HAZARD: 1. Keep solid combustibles, such as building materials, paper or cardboard, a safe distance away from the heater as recommended by the instructions in this manual. NEVER use the heater in locations which do or may contain volatile or airborne combustables, or products such as gasoline, solvents, paint thinner, dust particles or unknown chemicals. 2. These heaters are design certified as portable and wall or ceiling mounted electric room heaters under UL1278 and C22.2 No. 46-M1988 standards. 3. This heater is hot when in use. To avoid burns, do not let bare skin touch hot surfaces. Use handle when moving this heater. Keep combustable materials, such as furniture, pillow, bedding, papers, clothes and curtains at least 3 feet from the front, sides and rear of the heater and the feeder cable. Never let children operate or allow near any heater. Never leave heater operating and unattended. Always turn off heater at control/ service panel and then unplug heater when not in use. 4. Do not operate any heater with a damaged cord or plug or after the heater malfunctions, has been dropped or damaged in any manner. Return heater to an authorized service facility for examination, electrical or mechanical adjustment, or repair. 5. Do not use this heater outdoors or in a residential or household area. 6. This heater is not intended for use in bathrooms, laundry areas and smiliar indoor locations. 7. Do not run the cord under any carpeting. Do not cover the cord with runners or similar coverings. Arrange cord away from traffic area and where it will not be tripped over. 8. Do not insert or allow any foreign objects to enter any ventilation or exhaust opening as this may cause an electric shock or fire, or damage to the heater. 9 To prevent a possible fire, do not block air intakes or exhaust in any manner. 10. A heater has hot and arcing or sparking parts inside. Do not use this heater in areas where gasoline, paint, or flammable liquids are used or stored. 11. Use this heater only as described in this manual. Any other use not recommended by the manufacturer may cause fire, electric shock, or injury to persons. 12. Do not operate without protective grilles or guards in place. 13. Do not modify this heater in any way, or operate any heater that has been modified from its original state. 14. It is hard to anticipate every use, which may be made of the heater. Check with your local fire safety authority if you have any questions about heater application. 15. Do not supply power to this heater when heater is near standing water. Avoid the use of an extension cord because the extension cord may overheat and cause a risk of fire. If you are to use an extension cord, however: Check and verify branch circuit voltage. Heater should NOT be operated at voltages higher than the heater ratings! Features The Dayton portable electric heaters come mounted on a two wheeled tilt cart assembly, which can be moved around on its cart. The heater housing can be tilted to direct the air flow to any desired location. The features of the Dayton portable electric heaters are shown in Figure 3 on page 3. 2

3 Models 1RKT2, 1RKT3, 1RKT4, 1RKT5, 1RKT9 and 1RKU2 Assembly ASSEMBLING THE WHEELED CART Tools required: (2) 1/2 socket or box wrenches To position the handle at the proper operating height: Step 1: Remove and retain all of the hardware securing the legs to the handle. Step 2: Raise handle until holes in handle match the upper holes in the legs. Step 3: Re-install the hardware as shown in Figure 3a, and fasten securely. ASSEMBLING THE OPTIONAL WALL / CEILING MOUNT KIT FALLING OBJECTS HAZARD Serious injury or death may occur. Read and follow all safety information and instructions on pages 2 and 3. Tools required: (2) 3/4 socket or box wrenches Parts required: The two (2) screws required to secure wall/ceiling bracket to a suitable surface (not supplied), must be 5/16 bolts and flat washers. Step 1: Remove the wing knobs and remove the housing from the cart. Step 2: Install side rotating stop over bolts and into curved slots as shown in Figure 3b, on each side of the heater. Step 3: Assemble hanger to heater as per Figure 3b. This step requires no tools. Step 4: Secure mounting bracket to a surface that can support a minimum of 120 continuous pounds. Step 5: Attach heater to bracket using the desired option shown in Figure 4 on page 5. Hanger Handle Rotating Stopper Knob Bolt Packing Packing Knob Support Nut Pin Wheel Shaft Cap Wheel Shaft Support Cushion Figure 3a Cart Assembly Features Wheel Figure 3b Hanger Assembly Features 3

4 1RKT2, 1RKT3, 1RKT4, 1RKT5, 1RKT9 and 1RKU2 Dayton Portable Electric Heaters TABLE 1 Under 50 ft long Model Unit Rating Cable Size * 25 Cable part number 1RKT2 15kW Volt - 1RKT3 15kW Volt - 1 Phase 1RKT4 15kW Volt - 1RKT5 10kW Volt - 1 Phase 1RKT9 15kW Volt - 1RKU2 30kW Volt - 6/4 1RKT7 4/3 1RKT6 12/4 1RKT8 4/3 1RKT7 6/4 1RKT7 6/4 1RKT7 TABLE 2 Over 50 ft long Model Unit Rating Cable Size * Max. Cable Length (ft) 1RKT2 15kW Volt - 1RKT3 15kW Volt - 1 Phase 1RKT4 15kW Volt - 1RKT5 10kW Volt - 1 Phase 1RKT9 15kW Volt - 1RKU2 30kW Volt - 6/ / / / / /4 300 Tables 1 and 2: Cable information * Cable Size: AWG / Number of Conductors 4

5 Models 1RKT2, 1RKT3, 1RKT4, 1RKT5, 1RKT9 and 1RKU2 Assembly (Continued) - The mounting bracket supplied for the wall/ceiling mount option MUST be used to support heater. - The installer MUST be certain that the wall or ceiling that the mounting bracket is mounted to shall be able to support 120 pounds continuously. - The rotating stoppers shown in Figure 3b MUST be used. - DO NOT mount the heater upside down. Locate label on the heater showing TOP of heater. - The bottom of the heater must be mounted at least 6 feet from the floor and 2 feet from the ceiling. - DO NOT hang any other equipment from this heater, and only hang ONE heater per mounting bracket. Wiring Instructions NOTE: Feeder cable is not included with this heater. The proper size SO type feeder cable must be used for the electrical connection of this heater. The proper size cable is shown in the tables on page 4 (AWG / number of conductors). Table 1 is for cable 50 feet or less, and Table 2 is for cable longer than 50 feet. Comply with ALL electrical codes and the National Electrical Code (NFPA70) when providing electrical power to this heater. Feeder cable hook-up MUST be done by a licensed electrician 1. Use this heater only on the voltage and frequency specified on the nameplate. 2. All wiring should be done in accordance with local codes and the National Electrical Code by a licensed electrician. 3. Branch circuit wire for connection to heater must be at least 90 degree C wire. 4. Connect green ground conductor on feeder cable or cable kit to the grounding lug on the heater. 5. A ground terminal is provided near the power terminal board. The ground wire should be connected before any other connections are made. 6. Refer to tables 1 and 2 on page 4 for the proper size SO feeder cable. 7. A proper strain relief must be used with the designated cable. 8. The control / service panel or receptacle used to supply power to this heater MUST have a grounding bus or ground lug that is securely bonded to earth ground. Failure to comply with the precautions provided with this heater can result in serious injury and property loss or damage from hazards of fire, burn, and/or electric shock. Bolt Nylon Washer Rotating Stopper Nut Figure 4 Ceiling Mount Options 5

6 Dayton 1RKT2, 1RKT3, 1RKT4, 1RKT5, 1RKT9, and 1RKU2 Portable Electric Heaters Model 1RKT2 Model 1RKT3 Model 1RKT4 Model 1RKT5 Model 1RKT9 Figure 5 Wiring Diagrams Model 1RKU2 6

7 Models 1RKT2, 1RKT3, 1RKT4, 1RKT5, 1RKT9 and 1RKU2 Operating Instructions Dayton Portable Electric Heaters are designed to circulate room air across the heating element to gradually increase the room temperature. Best results will be obtained when using this heater in smaller, confined spaces with standard ceiling heights. The operation of this heater is controlled by a Thermostat Control Knob shown in Figure 6 below. It is possible to operate the heater fan only, or the fan and heater together. Press the Fan Control Switch to the ON position for fan only use. To add heat to the fan operation, turn the Thermostat Control Knob clockwise to the desired heat setting. Maximum heating will be obtained by turning the knob as far as it will rotate in the clockwise direction. Figure 6 Thermostat Control Knob Always allow the fan to operate for at least 3 minutes when you are finished using the heater element. This will allow the heat to be dissipated from the unit. Be sure access panel (see Figure 7) is secure before and during use of heater. All Dayton heaters are equipped with an internal temperature sensor that will completely shut down the heater should the sensor exceed the set limit. The heater will automatically reset, once the temperature drops to the proper level. - Do not use outdoors. - Do not use where flammable chemicals or liquids are stored. - Do not use this heater in a residence. - Always keep this heater at least 3 feet away from any combustible materials. - Do not modify this heater in any way. - Do not power this heater when it is near standing water. - Do not touch heater housing while heater is operating. - Do not allow power cable to contact any combustible materials. SHUT DOWN INSTRUCTIONS Turn thermostat control knob to OFF position and wait 2-3 minutes then press fan control switch to OFF position. NOTE: Always operate fan 2-3 minutes after the thermostat control knob has been turned to the OFF position to avoid overheating of the heater housing. - Always unplug heater when not in use, or turn off at control / service panel. Maintenance ELECTRIC SHOCK HAZARD. - Serious injury or death may occur. - Disconnect all power before installation or servicing this heater. Failure to do so can result in personal injury or property damage. Heater must be effectively grounded in accordance with the National Electrical Code NFPA 70.v. DANGER OF BODILY INJURY Never service heater while it is plugged in, operating or hot. Turn power off at disconnect switch or control / service panel before removing any access panels from heater! - Dust, lint and debris may affect heater performance. The heater draws air into it during operation. In the process dust, lint or debris will be drawn into your heater and spider webs can build up during off-season. Keep heating element and air passageways clean. Inspect or have these areas inspected annually at the beginning of the heating season by a qualified person. Your portable heater may require frequent cleaning due to excessive lint or debris depending on the surroundings. - To clean the housing of the heater wipe it down with a clean, moist rag. NEVER hose the unit down. - Remove any dust or dirt with compressed air. - NEVER operate the heater without any of the protective guards in place. - Replace the cable immediately if it should become damaged or cut. - The motor never needs lubrication. It is permanently lubricated. Storage - Store your portable heater in a dry and ventilated place. Make sure storage place is free of corrosive fumes. 7

8 For Repair Parts, call hours a day 365 days a year Please provide following information: -Model number -Serial number (if any) -Part description and number as shown in parts list 18 1RKT2, 1RKT3, 1RKT4, 1RKT5, 1RKT9, and 1RKU a b 20 Figure 7 Exploded Parts Illustration Replacement Parts List Ref Part Number for Models: No. Description 1RKT2 1RKT3 1RKT9 Qty 1 Drum Assembly HV G HV G HV G 1 2 Heater and Motor Bracket HV G HV G HV G 1 3a Heating Element - inner ring HV G HV G HV G 3 3b Heating Element - outer ring HV G HV G HV G 3 4 Link HV G HV G HV G 10 5 Magnetic Switch HV G HV G HV G 1 6 Over Temperature Switch HV G HV G HV G 1 7 Air Resister HV G HV G HV G 1 8 Motor Assembly HV G HV G HV G 1 9 Capacitor HV G HV G HV G 1 10 Lead Bushing HV G HV G HV G 2 11 Heater and Motor Bracket Cover HV G HV G HV G 1 12 Access Panel HV G HV G HV G 1 13 Thermostat Control Knob HV G HV G HV G 1 14 Guard (front/ rear) HV G HV G HV G 2 15 Rubber Hoop HV G HV G HV G 1 16 Support HV G HV G HV G 2 17 Packing HV G HV G HV G 2 18 Knob HV G HV G HV G 2 19 Handle HV G HV G HV G 1 20 Wheel HV G HV G HV G 2 8

9 For Repair Parts, call hours a day 365 days a year Please provide following information: -Model number -Serial number (if any) -Part description and number as shown in parts list 1RKT2, 1RKT3, 1RKT4, 1RKT5, 1RKT9, and 1RKU2 Replacement Parts List (Continued) Ref Part Number for Models: No. Description 1RKT2 1RKT3 1RKT9 Qty 21 Wheel Shaft HV G HV G HV G 1 22 Support Cushion HV G HV G HV G 2 23 Fan Assembly HV G HV G HV G 1 24 Connector HV G HV G HV G 1 25 Cable Band HV G HV G HV G 1 26 Fan Control Switch HV G HV G HV G 1 27 Stopper HV G HV G HV G 2 28 Fuse - HV G Fuse Holder - HV G Terminal Block - HV G - 1 Replacement Parts List Ref Part Number for Models: No. Description 1RKT4 1RKT5 1RKU2 Qty 1 Drum Assembly HV G HV G HV G 1 2 Heater and Motor Bracket HV G HV G HV G 1 3a Heating Element - inner ring (Qty) HV G (3) HV G (2) HV G (6) - 3b Heating Element - outer ring (Qty) HV G (3) HV G (2) HV G (6) - 4 Link (Qty) HV G (10) HV G (6) HV G (14) - 5 Magnetic Switch HV G HV G HV G 1 6 Over Temperature Switch HV G HV G HV G 1 7 Air Resister HV G HV G HV G 1 8 Motor Assembly HV G HV G HV G 1 9 Capacitor HV G HV G HV G 1 10 Lead Bushing HV G HV G HV G 2 11 Heater and Motor Bracket Cover HV G HV G HV G 1 12 Access Panel HV G HV G HV G 1 13 Thermostat Control Knob HV G HV G HV G 1 14 Guard (front/ rear) HV G HV G HV G 2 15 Rubber Hoop HV G HV G HV G 1 16 Support HV G HV G HV G 2 17 Packing HV G HV G HV G 2 18 Knob HV G HV G HV G 2 19 Handle HV G HV G HV G 1 20 Wheel HV G HV G HV G 2 21 Wheel Shaft HV G HV G HV G 1 22 Support Cushion HV G HV G HV G 2 23 Fan Assembly HV G HV G HV G 1 24 Connector HV G HV G HV G 1 25 Cable Band HV G HV G HV G 1 26 Fan Control Switch HV G HV G HV G 1 27 Stopper HV G HV G HV G 2 9

10 1RKT2, 1RKT3, 1RKT4, 1RKT5, 1RKT9, and 1RKU2 Dayton Portable Electric Heaters Troubleshooting Chart Symptom Possible Cause(s) Corrective Action Fan does not start when heater is plugged in and fan switch is in the ON position 1. No power to heater. 2. Bad electrical connection between motor and power supply / cord. 3. Defective plug. 4. Defective Fan Control Switch. 5. Defective fan motor. 1. Check disconnect switch or circuit breaker at control / service panel. 2. Check all electrical connections. See wiring diagram on page Replace plug. 4. Replace Fan Control Switch. 5. Replace fan motor. Fan runs but heater does not come ON. 1. Thermostat setting too low. 2. Bad electrical connection between thermostat and power supply. 3. Defective thermostat. 4. Defective high temperature limit control. 5. Defective Contactor. 1. Turn Thermostat Control Knob clockwise to a higher setting. 2. Check all electrical connections. See wiring diagram on page Replace thermostat. 4. Replace high temperature limit control. 5. Replace Contactor. 10

11 Notes 1RKT2, 1RKT3, 1RKT4, 1RKT5, 1RKT9, and 1RKU2 E N G L I S H 11

12 Dayton 1RKT2, 1RKT3, 1RKT4, 1RKT5, 1RKT9, and 1RKU2 Portable Electric Heaters E N G L I S H LIMITED WARRANTY DAYTON ONE-YEAR LIMITED WARRANTY. Dayton Portable Electric Heaters covered in this manual, are warranted by Dayton Electric Mfg. Co. (Dayton) to the original user against defects in workmanship or materials under normal use for one year after date of purchase. Any part which is determined to be defective in material or workmanship and returned to an authorized service location, as Dayton designates, shipping costs prepaid, will be, as the exclusive remedy, repaired or replaced at Dayton s option. For limited warranty claim procedures, see PROMPT DISPOSITION below. This limited warranty gives purchasers specific legal rights which vary from jurisdiction to jurisdiction. LIMITATION OF LIABILITY. To the extent allowable under applicable law, Dayton s liability for consequential and incidental damages is expressly disclaimed. Dayton s liability in all events is limited to and shall not exceed the purchase price paid. WARRANTY DISCLAIMER. Dayton has made a diligent effort to provide product information and illustrate the products in this literature accurately; however, such information and illustrations are for the sole purpose of identification, and do not express or imply a warranty that the products are MERCHANTABLE, or FIT FOR A PARTICULAR PURPOSE, or that the products will necessarily conform to the illustrations or descriptions. Except as provided below, no warranty or affirmation of fact, expressed or implied, other than as stated in the LIMITED WARRANTY above is made or authorized by Dayton. PRODUCT SUITABILITY. Many jurisdictions have codes and regulations governing sales, construction, installation, and/or use of products for certain purposes, which may vary from those in neighboring areas. While Dayton attempts to assure that its products comply with such codes, it cannot guarantee compliance, and cannot be responsible for how the product is installed or used. Before purchase and use of a product, review the product applications, and all applicable national and local codes and regulations, and be sure that the product, installation, and use will comply with them. Certain aspects of disclaimers are not applicable to consumer products; e.g., (a) some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you; (b) also, some jurisdictions do not allow a limitation on how long an implied warranty lasts, consequentially the above limitation may not apply to you; and (c) by law, during the period of this Limited Warranty, any implied warranties of implied merchantability or fitness for a particular purpose applicable to consumer products purchased by consumers, may not be excluded or otherwise disclaimed. PROMPT DISPOSITION. Dayton will make a good faith effort for prompt correction or other adjustment with respect to any product which proves to be defective within limited warranty. For any product believed to be defective within limited warranty, first write or call dealer from whom the product was purchased. Dealer will give additional directions. If unable to resolve satisfactorily, write to Dayton at address below, giving dealer s name, address, date, and number of dealer s invoice, and describing the nature of the defect. Title and risk of loss pass to buyer on delivery to common carrier. If product was damaged in transit to you, file claim with carrier. Manufactured for Dayton Electric Mfg. Co., 5959 W. Howard St., Niles, Illinois U.S.A. 12